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Commit 79379c19 authored by Brian Duddie's avatar Brian Duddie
Browse files

Move FaceDownDetector sensor config to background 

Avoid slowing down main thread by posting sensor enable/disable
operations to the background thread.

Bug: 411515601
Test: FaceDownDetector can register/unregister sensors
Test: FaceDownDetector can detect face down and turn off display
Flag: EXEMPT bugfix
Change-Id: Ib68b1b24c3bd678068d0655a3cc30f9ae39588fa
parent 2f5a928e

services/core/java/com/android/server/power/FaceDownDetector.java

+11 −7
Original line number Diff line number Diff line
@@ -36,6 +36,7 @@ import android.provider.DeviceConfig; 
import android.util.Slog;



import com.android.internal.annotations.VisibleForTesting;

import com.android.internal.os.BackgroundThread;

import com.android.internal.util.FrameworkStatsLog;



import java.io.PrintWriter;
@@ -205,12 +206,13 @@ public class FaceDownDetector implements SensorEventListener { 
        final boolean shouldBeActive = mInteractive && mIsEnabled && !sawRecentInteraction;

        if (mActive != shouldBeActive) {

            if (shouldBeActive) {

                BackgroundThread.getHandler().post(() -> {

                    mSensorManager.registerListener(

                            this,

                            mAccelerometer,

                            SensorManager.SENSOR_DELAY_NORMAL,

                        mSensorMaxLatencyMicros

                );

                            mSensorMaxLatencyMicros);

                });

                if (mPreviousResultType == SCREEN_OFF_RESULT) {

                    logScreenOff();

                }
@@ -219,7 +221,9 @@ public class FaceDownDetector implements SensorEventListener { 
                    mPreviousResultType = SCREEN_OFF_RESULT;

                    mPreviousResultTime = currentTime;

                }

                BackgroundThread.getHandler().post(() -> {

                    mSensorManager.unregisterListener(this);

                });

                mFaceDown = false;

                mOnFlip.accept(false);

            }